Oil burner



Oct. 13, 19 H. L. LE DAUM ET AL 1,827,294

OIL BURNER Filed April 8. 1929 Patented Oct. 13, 1931 UNITED STATESPATENT oF -uca HENRY L. LE DAUM AND LA VERNE G. STURGIS, OF SPBINGFEELD,OHIO, ASSIGNORS,

BY MESNE ASSIGNMENTS, TO THE BUCKEYE INO'UBATOR ANUFAC'E'URING COM-PANY, OF BEACHWOOD, OHIO, A CORPORATION OF OHIO OIL BURNER Applicationfiled April 8,

, This invention relates to improvements in oil burners, it relatingmoreparticularly to oil burners for use in connection with brooder stoves. I

One of the objects of the invention is provide improved means forfeeding the-air forming the combustible mixture, a more specific objectin this connection being to provide for the air to travel through atortu- 1010115 heated passage-way for the purpose of preheating the air.

Another object of the invention isto provide a construction forretarding back drafts through the passage which'supplies the air 15) forthe combustible mixture.

A further object of the invention is to provide an air passage-way forthe air for the combustible mixture so constructed that the air will bedelivered to the flame in the most an effective manner.

A further object is to provide an arrangement for deflecting the flameupon the lower portion or base of the stove to not only provide forheating the lower portion of the 85 brooding space in a moreeflective'way but also to heat those parts which form the airpassage-way.

In the accompanying drawings:

Fig. 1 is an elevation of a brooder stove in 80 which the improvementsare embodied, partly broken away and shown in section.

Fig. 2 is an enlarged section on the l ne 2-2 of Fig. 1. Fig. 3 is afurtherenlarged transverse sectional view, it being an enlargement ofthe section shown in Fig. 1.

Fig. 4 is an enlarged perspective view of a detai a Referring to thedrawings, S is a brooder stove of any. well known ty e on which issupported a canopy or hover a flue F being employed to carry away theproducts of com-, bustion.

'In this invention our improvements are 5 centered in the burner properof an oil burn ing brooder stove, the arrangement as here shown anddescribed being one which we have found eflicientand efiectlve, and onewhich may be substituted for burners of othertypes.

In the present instance, 1 is a flat, circular 1929. Serial No. 858,812.

metallic base which forms the bottom of the stove, 2 being legs employedto support the entire structure. Beneath the base is an air chamberformed by a comparatively in e circular dish-like member 3 concentricaly secured to the under side of the base 1, by bolts 4, which passthrough bosses which are of greater len th a space 6 is left fietweenthe upper edge of the sides 3' and the lower side of the base 1,

through which air may pass.

In the center of the member 3 is a raised boss 7 forming the burnerproper in whose upper surface are a series ofshallow concentric fuel,wells 8, 9 and 10 of varying depths. To the central one, 8, the liquidfuel is su plied by means of a pipe 11, the liquid fue flowing over theedge 12 into the well 9, and over the edge 13 into the well 10, and anyexcess overflowing the edge 14 is conducted from the stove by a pipe 15to a suitable storage receptacle (not shown).

The base member 1 has a lar e central orifice 16 and in the orifice isplace a air of mating auxiliary base members 17 so ormed that whenproperly assembled the effect of an integral construction isattained,'but, as here shown (Fi 4) greater economy in manufacture anassem ly and greater accessibility in any necessary disassembling,-asfor cleanin is obtained. The members 17 when mate are essentially asimple, flat disk having a flange 18 on its outer edge by which the diskis supported in the orifice 16, its urpose bein to close the orifice 16in the ase which is arge for the purpose ofenabling the operator to haveaccess to the pan 3 but so formed as to provide a smaller orifice 19,concentric with and directly above the burner wells 8, 9 and 10. Thediameter of the orifice 19 is approximatelyequ'al to the outer diameterof the well 9 and when in place the height of the edge 14 is such that acompara; tifvely .small space 20 is left for the passage 0 air.

Within the air chamber 3 an air baflling wall 21. is rovided, and itwill be obvious that from t e standpoint of economy in manufacture, aconvenient manner is as here shown, wherein the bafiling wall 21 is anthan the sides 3' so that 1 integral part of the base members 17. Thewall 21 depends downwardly and inwardly at an angle terminating in aninturned an- .nular flange 22 and extends to a position flow more freelyfrom outside atmosphere to the burner than in the opposite direction,flow of air backwardly through this passage being resisted by eddycurrentsin the space between the wall 21 and burner7.

Superimposed directly and concentrically above the central wall 8 is aflame spreader 25 supported by a bracket 26 secured to the base 1.Referring to Fig; 3. it will be seen that the spreader 25 is hinged on apin 27 in the upper end of the bracket 26' and may be swung upwardly andrearwardly. for better accessin cleaning. The spreader 25 has a centralinverted rounded end portion or boss 28 the side of which conforms to anarc of a circle, form ing in effect, a cone, at the base of which thecurvature is continued to form an annular down-turned flange 29 at theouter edge of the spreader.

The efiect and purpose of the spreader is to turn the flames issuingupwardly from the orifice 19, and to cause them to impinge on the base 1at about the point indicated by the character 30 in order to heat'thisportion of the base and to supply a quantity of reflected warmthdownwardlv to the floor below the stove. The dimensions of the pan 3 aresuch that the sides 3' approach the base at the point 30, this beingdone so that the incoming air must pass near this heated area. A furtherobiec't of the spreader 28 is to prevent the efi'ects of back draft to acertain extent since by its position downward currents are preventedfrom passing directly into the orifice 19. The control'of the heat iseffected by the thermostatic element which is placed in the usual mannernear the edge of the canopy C and is responsive to the warm currents ofair and operates the lever 56 which is operatively connected with theneedle valve 59 which controls the flow of fuel from the tankT throughthe-casings 31 and pipes P' to the burner; the casing being preferablyprovided with a sight feed opening 51.

Having thus described our invention, we

claim:

1. The combination of a base member having'an aperture, a burner memberincludin' a fuel-well on its upper side located beneat .said basein-comparatively close proximity thereto and in line with said aperturean air chamber below said base and surrounding aeeaaee the outside ofsaid depending wall, the wall of said aperture partly overlying the oilwell portion of the burner member to cause the air to be deflected overthe same 2. The combination of a base having an aperture, a burnerincluding a fuel well on its upper side located beneath said base incomparatively close proximity thereto and in line with said aperture, anair chamber below said base and surrounding said burner, an annular walldepending from said base into said chamber and spaced from the bottomthereof, said wall being inclined inwardly in a. downward direction andsurrounding said burner in spaced relation therewith and extending to apoint beneath the oil well of said burner. there being a passage fromoutside atmosphere communicating with said air chafinber on the-outsideof said depending wa 3. The combination with a base memberhaving anaperture, a burner member located beneath and in line with saidaperture, an air chamber below said base member and surrounding saidburner member, the upper portion of said chamber opening to atmosphere,and. an inclined annular wall having an inturned flange on its loweredge depending into said chamber and spaced from the bottom thereof,said wall surrounding said burner but spaced therefrom, there being anannular air passage communicating with said chamber and the aperture ofsaid base member, said wall being inclined inwardly from top to bottom.

4. The combination of a main base mem-- her having an aperture. a pairof mating base members seated in said aperture forming a structurehaving a central apertu e, aburner supported beneath and in line withthe aperture of said mating base members, an air chamber beneath saidbase members and surrounding said burner, a downwardlv and inwardlvinclined annular wall depending from said mating base members and spacedfrom the bottom of said air chamber, said wall surrounding said burnerbut spaced therefrom, the upper surface of said burner being spaced fromsaid mating base members to permit passage of air, the upper edge ofsaid air chamber being spaced from said main base member to provide anair passage leading from outside atmosphere.

5. The combination of a main base member having a central aperture, :1.pair'of auxiliary mating base members seated in said aperture forming astructure having a central a s aced from said base members to aperture,main base member on the under side thereof but spaced therefrom toprovide an air passage, with said air chamber and located beneath theaperture of said mating base members but rovide an an assage, each ofsaid mating ase members aving a downwardly cprojecting wall inclinedinwardly but space from said burner and also spaced from the bottom ofsaid chamber.

' In testimon whereof, we have hereunto set our hands the 27th da ofMarch, 1929.

HENRY LE DAUM.

LA VERNE C. STURGIS.

an a camber spam from said.

and a burner memberintegrally formed

